Delayed adaptive tile download

Abstract

Example methods, apparatuses, or articles of manufacture are disclosed herein that may be utilized, in whole or in part, to facilitate or support one or more operations or techniques for delayed adaptive tile download, such as for use in or with a mobile communication device, for example.

1 . A method for performing a positioning operation, comprising:
 transmitting, via a mobile device, one or more first messages to a server, said one or more first messages comprising measurements obtained at said mobile device;   receiving, at said mobile device, one or more second messages from said server, said one or more second messages comprising an estimated location of said mobile device computed based, at least in part, on said measurements in said one or more first messages; and   requesting a version of a tile of positioning assistance parameters determined to be applicable for an area including said estimated location, wherein said version of said tile is based, at least in part, on a history of visits of said mobile device to said area, said tile being requested for use in obtaining one or more subsequent position fixes at said mobile device based, at least in part, on one or more subsequent measurements within said area.   
     
     
         2 . The method of  claim 1 , wherein said history of visits comprises: a number of estimated locations of said mobile device clustered within said area; a number of said visits by said mobile device to said area; a number of tile requests for said area; time spent by said mobile device within said area; a type of a wireless network; a cellular carrier; a service contract; processing capability of said mobile device, or memory capacity of said mobile device; or any combination thereof. 
     
     
         3 . The method of  claim 1 , wherein said tile of positioning assistance parameters is selectively requested in response to said estimated location of said mobile device being in a cluster of previous estimates of location of said mobile device. 
     
     
         4 . The method of  claim 3 , wherein said cluster of previous estimates of location of said mobile device is determined based, at least in part, on determining whether a number of estimated locations of said mobile device are within a threshold distance. 
     
     
         5 . The method of  claim 4 , wherein said number of estimated locations comprises: a number of consecutive estimated locations, or a number of absolute estimated locations; or any combination thereof. 
     
     
         6 . The method of  claim 3 , wherein said cluster of previous estimates of location of said mobile device is further determined based, at least in part, on determining whether a number of “matched” estimated locations of said mobile device is within a threshold number. 
     
     
         7 . The method of  claim 1 , wherein said version of said tile of positioning assistance parameters comprises: a multi-level tile; a higher-resolution tile, or a lower-resolution tile; or any combination thereof. 
     
     
         8 . The method of  claim 1 , wherein said measurements obtained at said mobile device comprise: a media access control (MAC) address of a wireless transmitter; a cellular identification number (Cell ID) of a wireless transmitter; a transmission power level of a wireless transmitter; a received signal strength indication (RSSI) measurement of a wireless transmitter, or a round trip time (RTT) measurement of a wireless transmitter; or any combination thereof. 
     
     
         9 . The method of  claim 8 , wherein said wireless transmitter comprises: a wireless area network (Wi-Fi) access point, or a cellular base station; a wireless transceiver; or any combination thereof. 
     
     
         10 . The method of  claim 1 , wherein said measurements obtained at said mobile device are transmitted in the form of an Institute of Electrical and Electronics Engineers (IEEE) standard 802.11 (IEEE std. 802.111 scan list. 
     
     
         11 . The method of  claim 1 , wherein said one or more subsequent position fixes are obtained without communicating with said server. 
     
     
         12 . The method of  claim 1 , wherein said measurements obtained at said mobile device are stored in memory of: said mobile device, or a server; or any combination thereof. 
     
     
         13 . An apparatus to perform a positioning operation comprising:
 means for transmitting, via a mobile device, one or more first messages to a server, said one or more first messages comprising measurements obtained at said mobile device;   means for receiving one or more second messages from said server, said one or more second messages comprising an estimated location of said mobile device computed based, at least in part, on said measurements in said one or more first messages; and   means for requesting a version of a tile of positioning assistance parameters determined to be applicable for an area including said estimated location, wherein said version of said tile is based, at least in part, on a history of visits of said mobile device to said area, said tile being requested for use in obtaining one or more subsequent position fixes at said mobile device based, at least in part, on one or more subsequent measurements within said area.   
     
     
         14 . The apparatus of  claim 13 , wherein said history of visits comprises: a number of estimated locations of said mobile device clustered within said area; a number of said visits by said mobile device to said area; a number of tile requests for said area; time spent by said mobile device within said area; a type of a wireless network; a cellular carrier; a service contract; processing capability of said mobile device, or memory capacity of said mobile device; or any combination thereof. 
     
     
         15 . The apparatus of  claim 13 , wherein said means for selectively requesting said tile of positioning assistance parameters comprise means for selectively requesting said tile in response to said estimated location of said mobile device being in a cluster of previous estimates of location of said mobile device. 
     
     
         16 . The apparatus of  claim 15 , wherein said cluster of previous estimates of location of said mobile device is determined via means for determining whether a number of estimated locations of said mobile device are within a threshold distance. 
     
     
         17 . The apparatus of  claim 16 , wherein said number of estimated locations comprises: a number of consecutive estimated locations, or a number of absolute estimated locations; or any combination thereof. 
     
     
         18 . The apparatus of  claim 15 , wherein said cluster of previous estimates of location of said mobile device is further determined via means for determining whether a number of “matched” estimated locations of said mobile device is within a threshold number. 
     
     
         19 . The apparatus of  claim 13 , wherein said version of said tile of positioning assistance parameters comprises: a multi-level tile; a higher-resolution tile, or a lower-resolution tile; or any combination thereof. 
     
     
         20 . The apparatus of  claim 13 , wherein said measurements obtained at said mobile device are transmitted in the form of an Institute of Electrical and Electronics Engineers (IEEE) standard 802.11 (IEEE std. 802.11) scan list. 
     
     
         21 . The apparatus of  claim 13 , wherein said one or more subsequent position fixes are obtained without communicating with said server. 
     
     
         22 . An apparatus to perform a positioning operation comprising:
 a mobile device comprising:
 a wireless transceiver to communicate with an electronic communications network; and 
 one or more processors coupled to a memory to:
 initiate transmission of one or more first messages via said wireless transceiver to a server, said one or more first messages comprising measurements obtained at said mobile device; 
 receive one or more second messages at said wireless transceiver from said server, said one or more second messages comprising an estimated location of said mobile device computed based, at least in part, on said measurements in said one or more first messages; and 
 request a version of tile of positioning assistance parameters determined to be applicable for an area including said estimated location, wherein said version of said tile is based, at least in part, on a history of visits of said mobile device to said area, said tile being requested for use in obtaining one or more subsequent position fixes at said mobile device based, at least in part, on one or more subsequent measurements within said area. 
 
   
     
     
         23 . The apparatus of  claim 22 , wherein said history of visits comprises: a number of estimated locations of said mobile device clustered within said area; a number of said visits by said mobile device to said area; a number of tile requests for said area; time spent by said mobile device within said area; a type of a wireless network; a cellular carrier; a service contract; processing capability of said mobile device, or memory capacity of said mobile device; or any combination thereof. 
     
     
         24 . The apparatus of  claim 22 , wherein said one or more processors to said selectively request said tile of positioning assistance parameters further to selectively request said tile in response to said estimated location of said mobile device being in a cluster of previous estimates of location of said mobile device. 
     
     
         25 . The apparatus of  claim 24 , wherein said one or more processors further to determine whether a number of estimated locations of said mobile device are within a threshold distance. 
     
     
         26 . The apparatus of  claim 24 , wherein said one or more processors further to determine whether a number of “matched” estimated locations of said mobile device is within a threshold number. 
     
     
         27 . A method for performing a positioning operation, comprising:
 collecting measurements of wireless transmitters in an area to be stored as one or more clusters of position fixes with reference to said area;   obtaining a position fix based, at least in part, on said measurements of said wireless transmitters; and   in response to determining that said position fix being in a particular cluster of previous position fixes of said one or more clusters, accessing a version of a tile of positioning assistance parameters determined to be applicable for said area and said position fix for use in obtaining subsequent position fixes, wherein said version of said tile is based, at least in part, on subsequent measurements of at least one of said wireless transmitters in said area.   
     
     
         28 . The method of  claim 27 , wherein said determining that said position fix being in said particular cluster further comprises determining whether a set number of position fixes are within a threshold distance. 
     
     
         29 . The method of  claim 27 , wherein said determining that said position fix being in said particular cluster further comprises determining whether a set number of “matched” position fixes is within a threshold number. 
     
     
         30 . The method of  claim 27 , wherein said positioning operation is performed via: a server; a mobile device, or any combination thereof.